Aphids

So i have a few plants outside. i cut down a tree thing next to them, that was covered in little white aphids. but now they have moved on to a few of my plants. what can i use to rid of them and not make my buds gnarly?

prey manthis will eat the aphids i had problems with those last year

ah yes...bug eat bug

I've heard of people liking lady bugs, certain times of year you can pick up bags of them at a nursery or walmart ect.
Good luck!